Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 34158
Title Innate responses of the parasitoids Cotesia glomerata and C. rubecula (Hymenoptera: Braconidae) to volatiles from different plant-herbivore complexes.
Author(s) Geervliet, J.B.F.; Vet, L.E.M.; Dicke, M.
Source Journal of Insect Behavior 9 (1996). - ISSN 0892-7553 - p. 525 - 538.
Department(s) Laboratory of Entomology
Publication type Refereed Article in a scientific journal
Publication year 1996
Abstract To determine and compare innate preferences of the parasitoid species Cotesia glomerata and C. rubecula for different plant-herbivore complexes, long-range (1-m) foraging behavior was studied in dual-choice experiments in a wind tunnel. In this study we tested the hypothesis that naive females of the specialist C. rubecula should show more pronounced preferences for different plant-herbivore complexes than females of the generalist C. glomerata. The herbivore species used were the pierids Pieris brassicae, P. rapae, P. Napi, and Aporia crataegi and the nonhosts Plutella xylostella and Mamestra brassicae. All herbivore species feed mainly on cabbage arid wild crucifers, except Aporia crataegi, which feeds on species of Rosaceae. Both parasitoid species preferred herbivore-damaged plants over nondamaged plants. Neither C. rubecula nor C. glomerata discriminated between plants infested by different caterpillar species, not even between plants infested by host- and nonhost species. Both parasitoid species showed preferences for certain cabbage cultivars and plant species. No differences were found in innate host-searching behavior between C. glomerata and C. rubecula. The tritrophic system cabbage-caterpillars-Cotesia sp. seems to lack specificity on the herbivore level, whereas on the plant level differences in attractiveness to parasitoids were found.
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